19 Works

Data from: Genetic and environmental canalization are not correlated among altitudinally varying populations of Drosophila melanogaster

Ian Dworkin & Maria Pesevski
Organisms are exposed to environmental and mutational effects influencing both mean and variance of phenotypes. Potentially deleterious effects arising from this variation can be reduced by the evolution of buffering (canalizing) mechanisms, ultimately reducing phenotypic variability. There has been interest regarding the conditions enabling the evolution of canalization. Under some models, the circumstances under which genetic canalization evolves is limited, despite apparent empirical evidence for it. It has been argued that genetic canalization evolves as...

Data from: Allometric scaling of metabolism is linked to colony aggressiveness in ants

Krista Kraskura, Thomas Lenihan, James Lichtenstein, Kirsten Sheehy, Grant Doering, Alexander Little, Jonathan Pruitt & Erika Eliason
These data are supplementary to a study entitled: "Allometric scaling of metabolism is linked to colony aggressiveness in ants". These data describe metabolic rates and behavior (aggressiveness) in ant colonies across size. The majority of scaling relationships are established on solitary organisms, but metabolism also scales allometrically with colony size in eusocial insect societies. One possible parameter that may affect metabolism in social insect colonies, is a colony’s collective behavioral phenotype. These data were collected...

Life history predicts flight muscle phenotype and function in birds

Shane DuBay, Yongjie Wu, Graham Scott, Yanhua Qu, Qiao Liu, Joel Smith, Chao Xin, Andrew Hart Reeve, Chen Juncheng, Dylan Meyer, Jing Wang, Jacob Johnson, Zachary Cheviron, Fumin Lei & John Bates
1. Functional traits are the essential phenotypes that underlie an organism’s life history and ecology. Although biologists have long recognized that intraspecific variation is consequential to an animals’ ecology, studies of functional variation are often restricted to species-level comparisons, ignoring critical variation within species. In birds, interspecific comparisons have been foundational in connecting flight muscle phenotypes to species-level ecology, but intraspecific variation has remained largely unexplored. 2. We asked how age- and sex-dependent demands on...

Evolution of the speech‐ready brain: The voice/jaw connection in the human motor cortex

Steven Brown, Ye Yuan & Michel Belyk
A prominent model of the origins of speech, known as the “frame/content” theory, posits that oscillatory lowering and raising of the jaw provided an evolutionary scaffold for the development of syllable structure in speech. Because such oscillations are non‐vocal in most non‐human primates, the evolution of speech required the addition of vocalization onto this scaffold in order to turn such jaw oscillations into vocalized syllables. In the present functional MRI study, we demonstrate overlapping somatotopic...

Data from: Physical and social cues shape nest-site preference and prey capture behavior in social spiders

Gabriella Najm, Angelika Pe, Jonathan Pruitt & Noa Pinter-Wollman
Animals often face conflicting demands when making movement decisions. To examine the decision process of social animals, we evaluated nest site preferences of the social spider Stegodyphus dumicola. Colonies engage in collective web building, constructing three-dimensional nests and two-dimensional capture webs on trees and fences. We examined how individuals and groups decide where to construct a nest based on habitat structure and conspecific presence. Individuals had a strong preference for three dimensional-substrates and conspecific presence....

Coordinated changes across the O2 transport pathway underlie adaptive increases in thermogenic capacity in high-altitude deer mice

Graham Scott, Kevin Tate, Oliver Wearing, Catherine Ivy, Zachary Cheviron, Jay Storz & Grant McClelland
Animals native to the hypoxic and cold environment at high altitude provide an excellent opportunity to elucidate the integrative mechanisms underlying the adaptive evolution of complex traits. The capacity for aerobic thermogenesis can be a critical determinant of survival for small mammals at high altitude, but the physiological mechanisms underlying the evolution of thermogenic capacity remain unresolved. We examined this issue by comparing high-altitude deer mice (Peromyscus maniculatus) to low-altitude deer mice and white-footed mice...

Data from: Artificial selection on sexual aggression: correlated traits and possible trade‐offs

Reuven Dukas, Janice L. Yan, Andrew M. Scott, Surabhi Sivaratnam & Carling M. Baxter
Forced copulation is an extreme form of sexual aggression that can affect the evolution of sex-specific anatomy, morphology and behavior. To characterize mechanistic and evolutionary aspects of forced copulation, we artificially selected male fruit flies based on their ability to succeed in the naturally prevalent behavior of forced matings with newly eclosed (teneral) females. The low and high forced copulation lineages showed rapid divergence, with the high lineages ultimately showing twice the rates of forced...

UV reflectance in poison frog

Justin Yeager & James Barnett
We have identified strong UV reflectance in the white spots of only a single population of the polymorphic/polytypic poison frog species Oophaga sylvatica. As congeners (O. pumilio) are unable to view UV signals, it stands to reason that natural selection, or neutral processes are likely to be responsible for these signals. We employ visual modeling techniques to estimate the perception of these UV signals, and in a series of comparisons we show surprisingly minimal gains...

Tactic-specific antimicrobial activity suggests a parental care function for accessory glands in a marine toadfish

Meghan Pepler, Hindra Hindra, Jessica Miller, Marie Elliot & Sigal Balshine
Males of some species possess extra reproductive organs called accessory glands which are outgrowths of the testes or sperm duct. These organs have a well-established role in reproduction; however, they also appear to have other important functions that are less understood. Here we investigate the function of the highly complex accessory glands of a marine toadfish, Porichthys notatus, a fish with two reproductive male types: large care-providing ‘guarder’ males and small non-caring ‘sneaker’ males. While...

Efficacy of treatments for polycystic ovarian syndrome management in adolescents: a systematic review and network meta-analysis

Reem Al Khalifah, Ivan Florez, Michael Zoratti, Brittany Dennis, Lehana Thabane & Ereny Bassilious
Limited evidence on treatment options for polycystic ovarian syndrome (PCOS) has led to considerable variation in healthcare practices. We aimed to compare the effects of metformin and/or oral contraceptive pills (OCPs) in combination with pioglitazone, spironolactone, flutamide, and lifestyle interventions among adolescents aged 11-19 years with PCOS. Literature searches were performed in Medline, Embase, and the Cochrane Central Register of Controlled Trials from database inception through December 2018, with no language restriction. Two reviewers screened...

Data from: Context-dependent consequences of colour biases in a social fish

Brett Culbert, Sanduni Talagala, Emily Stanbrook, Parker Smale, Sigal Balshine & James Barnett
Colourful visual signals can provide receivers with valuable information about food, danger, and the quality of social partners. However, the value of the information that colour provides varies depending on the situation, and colour may even act as a sensory trap where signals that evolved under one context are exploited in another. Despite some elegant early work on colour as a sensory trap, few empirical studies have examined how colour biases may vary depending on...

Environmental drivers of Sphagnum growth in peatlands across the Holarctic region

Fia Bengtsson, Håkan Rydin, Jennifer Baltzer, Luca Bragazza, Zhao-Jun Bu, Simon Caporn, Ellen Dorrepaal, Kjell Ivar Flatberg, Olga Galanina, Mariusz Gałka, Anna Ganeva, Irina Goia, Nadezhda Goncharova, Michal Hajek, Akira Haraguchi, Lorna Harris, Elyn Humphreys, Martin Jiroušek, Katarzyna Kajukało, Edgar Karofeld, Natalia Koronatova, Natalia Kosykh, Anna Laine, Mariusz Lamentowicz, Elena Lapshina … & Richard J. Payne
The relative importance of global versus local environmental factors for growth and thus carbon uptake of the bryophyte genus Sphagnum – the main peat-former and ecosystem engineer in northern peatlands – remains unclear. 2) We measured length growth and net primary production (NPP) of two abundant Sphagnum species across 99 Holarctic peatlands. We tested the importance of previously proposed abiotic and biotic drivers for peatland carbon uptake (climate, N deposition, water table depth, and vascular...

Data from: Remission of type 2 diabetes following a short-term intervention with insulin Glargine, Metformin and Dapagliflozin.

Natalia McInnes & Hertzel Gerstein
This dataset contains Supplemental Tables for the manuscript.

Data for: Calibration of individual-based models to epidemiological data: a systematic review

C. Marijn Hazelbag, Jonathan Dushoff, Emanuel M. Dominic, Zinhle E. Mthombothi & Wim Delva
Calibrating or fitting an individual-based model (IBM) to data is a crucial step in model development. We performed a systematic review to provide an overview of calibration methods used in IBMs modelling infectious disease spread. We included articles if models stored individual-specific information and calibration involved running the model and comparing model output to population-level targets expressed as summary statistics. The dataset contains information for each of the included articles on model calibration methods, including;...

Data from: How “simple” methodological decisions affect interpretation of population structure based on reduced representation library DNA sequencing: a case study using the lake whitefish

Carly F Graham, Douglas R Boreham, Richard G Manzon, Wendylee Stott, Joanna Y Wilson & Christopher M Somers
Reduced representation (RRL) sequencing approaches (e.g., RADSeq, genotyping by sequencing) require decisions about how much to invest in genome coverage and sequencing depth (library quality), as well as choices of values for adjustable bioinformatics parameters. To empirically explore the importance of these “simple” decisions, we generated two independent sequencing libraries for the same 142 individual lake whitefish (Coregonus clupeaformis) using a nextRAD RRL approach: (1) A small number of loci and low sequencing depth (library...

Territory acquisition mediates the influence of predators and climate on juvenile red squirrel survival

Jack G Hendrix, David Fisher, April Martinig, Stan Boutin, Ben Dantzer, Jeffrey Lane & Andrew McAdam
1) Juvenile survival to first breeding is a key life history stage for all taxa. Survival through this period can be particularly challenging when it can coincide with harsh environmental conditions such as a winter climate or food scarcity, leading to highly variable cohort survival. However, the small size and dispersive nature of juveniles generally makes studying their survival more difficult. 2) In territorial species, a key life history event is the acquisition of a...

Data from: Female mating experience and genetic background independently influence male mating success in fruit flies

David Filice, Rajat Bhargava & Reuven Dukas
When the reproductive interests of males and females conflict, males can evolve traits that are harmful to females, and females can coevolve traits to resist this harm. In the fruit fly, Drosophila melanogaster, there is genetic variation in female resistance traits, which can affect the pre- and post-mating success of males that try to mate with them. However, it is not clear to what extent the expression of these phenotypes can be modified by environmental...

Plasticity in male mating behavior modulates female life-history in fruit flies

David Filice, Rajat Bhargava & Reuven Dukas
In many species, intense male-male competition for the opportunity to sire offspring has led to the evolution of selfish reproductive traits that are harmful to the females they mate with. In the fruit fly, Drosophila melanogaster, males modulate their reproductive behavior based on the perceived intensity of competition in their pre-mating environment. Specifically, males housed with other males subsequently transfer a larger ejaculate during a longer mating compared to males housed alone. While the potential...

Vape flavorants dull sensory perception and cause hyperactivity in developing zebrafish embryos

Patrick Gauthier, Alison Holloway & Mathilakath Vijayan
E-cigarette use (vaping) during pregnancy has been increasing, and the potential exists for the developing brain in utero to be exposed to chemical constituents in the vape. Vapes come in over 7,000 unique flavors with and without nicotine, and while nicotine is a known neurotoxicant, the effects of vape flavoring alone, in the absence of nicotine, on brain function are not well understood. Here we performed a screen of vape aerosol extracts (VAEs) to determine...

Registration Year

  • 2020

Resource Types

  • Dataset


  • McMaster University
  • University of Montana
  • University of Calgary
  • University of Eastern Finland
  • Wilfrid Laurier University
  • University of Michigan–Ann Arbor
  • Field Museum of Natural History
  • Queens University
  • University of Neuchâtel
  • University of Saskatchewan